Improvement in piano-stools



M. P. SGHLAMBS. Piano-Stool.

No. 215,400. I Patented May 13,1879.

NE PETERS. PHDTKLLITHOGRAPHER WASHINGTON. D C,

UNITED STATES PATENT OFFICE.

MATHIES P. SOHAMBS, OF MANSFIELD OHIO.

IMPROVEMENT IN PIANO-STOOLS.

Specification forming part of Letters Patent No. 215,400. dated May 13,1879; application filed December 26, 1878.

To all whom it may concern:

Be it known that I, MATHIEs P. SCHAMBS, of Mansfield, in the county ofRichland and State of Ohio, have invented a new and useful Improvementin Piano- Stools, of which the following is a specification, referencebein g had to the accompanying drawings.

The invention relates to an improvement in piano-stools or chairs; andconsists in the means hereinafter described for preventing the lateralmovement of the seat thereof.

The object of the invention is to provide a means whereby the seat ofthe pianostool may be raised or lowered, which will prevent all lateralmovement of the seat, and at the same time add to the beauty of thestool.

Figure 1 is a side view of a piano-stool containing an embodiment of theinvention. Fig. 2 is a bottom view of the hanger D, with the base A ofthe stool removed.

In the accompanying drawings, Arepresents the base of the stool, which,in the present instance, is of metal, and consists of the legs a. andcylindrical body b, the latter being supplied at its vertical centerwith the internallythreaded aperture cl. 7 t

B indicates the seat, which may be of any suitable construction, and iscentrally provided upon its under surface with amale screw, e, the headof which may be secured in a of the arms f extend downward and inward,

and hold the sleeve i, which encircles the lower end of the screw 6. Thescrew 6 is of a diameter to snugly enter the aperture (1, while thesleeve t is large enough to closely fit over the cylindrical body of thebase A. The low er part of this body may be ornamented as desired; butits upper portion must be plain, (or it may be fluted or grooved) inorder that the movement of the sleeve 43 over its superficies may besmooth and free.

The operation of the deviceis plain. The seat may be raised or loweredin the usual way by working it either to the left or right. While theseat is being elevated, the screw ascends in the aperture d, and thesleeve thas a similar movement upon the outside of the body I). Thesleeve t passing over a large surface of and snugly fitting the body b,prevents, in connection with the screw 0, any lateral movement of theseat.

It is obvious that the arms f could be worked into some ornamental formand in crease the elegance of construction of the stool.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. An adjustable stool or chair, in which the seat carries the screwwhich enters the base, and also a frame which envelopes the body of thebase and moves with the screw and seat, substantially as set forth.

2. The seat B, having screw 6 and hanger D, consisting of the arms f andsleeve i, in combination with the base A, having cylindrical portion I),with threaded aperture d, substantially as set forth.

i 'In testimony that I claim the foregoing improvement in piano-stoolsas above described I have hereunto set my hand this 14th day ofDecember, 1878.

MATHIES P. SGHAMBS.

Witnesses:

'1. E. BARROW,

GEO. W. STATLER.

